In order to cheer Haruto up after his anime was such a flop, Itsuki gets him as well as Nayuta, Miyako and Chihiro together so they can play a TRPG. Itsuki usually plays girls in games, but for some reason, Chihiro makes out their character to be Itsuki’s character’s little sister, which leads to Nayuta and Miyako also making their characters sisters of the other two. Haruto becomes the GM and does whatever he wants.
This game is a peaceful fantasy, 
so nothing that dangerous will happen.
So was Krasses passiert in der gemächlichen
Fantasywelt unseres Spiels nicht.
Este es un juego de fantasía,
no pasará algo así.
Este es un juego de fantasía,
no pasará nada así.
Ici, c’est de la fantasy paisible,
vous n’avez rien à craindre.
Nel nostro caso invece siamo in un fantasy pacifico,
perciò non succederà niente di pericoloso.
Esse jogo é uma fantasia pacífica,
então nada de violento irá acontecer.
А у нас с вами мирное фэнтэзи,
здесь таких ужасов не бывает.